The answer is y^-1 :) when you have two exponents over a y in a fraction or divison, you always subtract the top from the bottom. hope this helps!
Answer:
if the corner is (4x-17)², I believe X would equal 9.644, or if it can be rounded to the tenths place, 9.6, if rounded to the ones place, it'd be 10. I could be wrong, however. I'm not too familiar with this, just wanted to help
For perimeter, you just need to add up all the numbers!
1.)200,000 2.)400,000
3.)900,000
example:155,000 in the hundred thousanths place is a 1, so then u look at the number right beside it on the right side. and a rule when ur rounding is 5 or more raise the score, 4 or less let it rest. the number to the right of it is a 5,so u make the 1 go 1 number up.,which is 2, then u make all the numbers to the right a 0.so it would be 200,000 rounded to the nearest hundred thousanth